Nut-lock.



W. A. HUBENER.

NUT LOCK.

APPLICATION FILED AUG-3I| 3916.

ji i Patented Sept. 11, 191?.

2 SHEETS-sein z.

' l Amm/Ens WILLIAM ALOYSIUS HUBENER, OF NEW YORK, N. Y.

NUT-LOCK.

readers.

To aZZ whom t may concern:

Be it known that l, 1WILLIAM ALorsIUs UBENER, a citizen of the UnitedStates, and a resident of the city of New York, borough of Manhattan, inthe county and State of N ew York, have invented a new and lmprovedNut-Lock, of which the following is a full, clear, and exactdescription.

This invention relates to nut and bolt locks and has particularreference to novel and peculiar `means for locking a nut or itsequivalent from removal by inadvertence or the like from a bolt. l

Among the objects of the invention is to provide a threaded bolt with alongitudinal slot or keyway and a spring operated key movablelongitudinally of said slot or keyway into lposition to obstruct andprevent the removal of a nut threaded to coperate with the bolt.

By the term"bolt7 as employed herein, l mean to fairly cover anyanalogous device, such as a rod, shank or other attaching means adaptedto be so secured in place in a support as to be safe from inadvertent oraccidental removal, and likewise by the term nut l mean to cover anyanalogous device such as a head or other keeper cooperating with thebolt to prevent the endwise movement of the bolt from the support.

ong the objects of the invention, therefore, is to provide a lockingdevice for a nut which will constitute positive means to preventrelative rotation between the nut and bolt, but which will permit theremoval of the nut when desired, the locking device being adapted to beused repeatedly without damage either to it or to the other parts.

With the foregoing and .other objects in view the invention consists inthe arrangement and combination of parts hereinafter described andclaimed, and while the invention is not restricted tothe exact detailsof construction disclosed or suggested herein, still for the purpose ofillustrating a practical embodiment thereof reference is had to theaccompanying drawings, in which like reference characters designate thesame parts in the several views, and in which Figure l is a sideelevation of one form of bolt and locking device cooperating therewith;

Fig. 2 is an inside face view of a nut adapted to cooperate with thebolt shown in Fig. l; i

Specication of Letters Patent. Application led August 31, 1916.

Patented Sept. i1, 1917.. Serial No. 117,877.

` Fig. 3 is a side elevation of the principal parts of the bolt shown inposition in the support where it is to be secured, the locking devicebeing set for the connection oi the nut;

Fig. d is a longitudinal sectional view of the same with the nuttightened and locked; ig. 5 is a transverse sectional detail on thebroken line 5-5 of Fig. 3;

Fig. 6 is ai. transverse sectional detail through the nut and bolt onthe line 6-6 of Fig. 4;

Figs. 7 and 8 are detail perspective views of the pin and keyrespectively of the locking device;

Fig. 9 is a side elevation partly in section of a niodilied form oi" myimprovement, the nut being shown as just started toward its lockedposition;

Fig. l0 is an end view of the device looking toward the left in Fig. 9;

Fig. 11 is a transverse sectional detail on the line 11-11 of Fig. 9;

Fig. 12 is a longitudinal section on the line 12-12 of Fig. 13indicating the nut in locked position;

Fig. 13 is a transverse sectional the line 13-13 of Fig. 12;

Fig. 14e is a plan view of another modil'ication of bolt and lockingdevice with the nut in section screwed into place for locking;

Fig. 15 is a vertical longitudinal section or" the same on the line15-15 of Fig. 14, but showing the key projected into locking position;and

Fig. 16 is a vertical transverse section on the line 16-16 of Fig. 14.

Referring now to the iirst set of figures, l. show a bolt 2O having athreaded end having longitudinal central keyways or kerfs formed thereinin two planes at right angles to each other and intersecting at thecentralaxis of the bolt, these keyways being indicated at 22. At theinner ways are notched or undercut at Q3 to form a temporary catch orholder for the key 24, shown in detail in Fig. 8 and ot crucitorm shape.he arms of the key proj ect radially from the `central hole 25 so as toproject slightly beyond the periphery of the threaded portion 21 of thebolt. It will be understood also that the arms ot' the key are adaptedto practically ll those parts of the keyways in which the key lies.

detail on ends the key- L' In other f i projected outwardly words,except for the notches 23, the key is not adapted to rotate relativelyto the bolt when in position in the kejways.

Another portion of the locking device is a pin 26 which is adapted to beseatedl at in a pocket or cavity 27 form'edn 'the'endsof the key armsare adaptedtobe projected by the spring Q9 when the nut 1s to-be locked.

rllhe loperation ofi this form of the inven.- tion may be briefiysummarized as follows: The bolt is projected through the support,thefthickness of which togetherwith one or more washers 32 is sutlicientto providethat the` threaded end of the bolt beyond the notches=23 willlie beyond the outer face of thesupport or outermost washer'so that thenut may be screwed tightly into place with a wrench or the-like ifdesired. To apply the nut, however, the locking device isintroduced andthe key is slipped longitudinally of the pin against the force of thespring 29 and then given a slight rotation to cause'the armsthereof tointerlock in the notches123, occupying the place shown in Fig. 3. One ofthearms of thekey may be provided` with a groove 33 to effect thisrotation bymeans of' a screw driver or similar tool if the key is beyondthe reachof the linger nail. After the'nuty istightened, the tool willbe'4 introduced through one of the keyways 22 soas to' rotate the key inthe reverse direction, setting it free to be projected by thespring 29into the-notchesl. Since the key is now beyond the notches 23 of thebolt, it is positively held from rotation with relation tothe bolt' and,therefore, since :the ends of the arms of the key project intothe `nutnotches B1, the nut will be positively locked from relative rotation.The unnotchecb portion of the nut obviously will prevent further outwardmovement of the key under the force of the spring. The tension ofthespring will normally preventthe inward movement ofthe'key. Therefore, byno possibilty can the nutv be accidentally loosened or removed. 1When itis desiredlto remove the nut, the operator by the use of a screw driveror'similar tool will force'the key inwardly to the position in Fig. 31,when the nut will be free to-be unscrewedE and the bolt will be free inturn to be removedi from the support.

In the modification shown in Figs. 9 to' '13,

Y 26, and spring or. shota outwardly bythe spring to cause the bolttoThe notches Q3, however, are not used m invention. The key Q4, pin 29may be practically the same as already described. i;

The nutL 4:` differs from the nut 30 in that t'l'lis form ofthe insteadof the notches 31 being formed only j at the inner surfaceof the nut,they are cut. entirely through longitudinally forming groovesof a size.to receive;I all ofl the ends ofi the key. arms. rIzhe;threaded.. por-85 may be regarded as ribsadaptedl to be slippedy along lthe keywayse..In" other words, this orm` of the: invention. contemplates f that the.nut-z instead of being rotated ltions of' the nut. between-theadj acentgrooves or. .screwed alongthe :threaded portionioffthe bolty tofposition, will: be pushedi bodily ,by the` opera-tors-y fingersV to theplace: where it is to be locked, thethreaded ribszyof the nut slipping.lfreely along the! keyw-ays 2:2` and pushing the key therewith untilf`thel nut reaches thel support on other.' obstruction. rEhen by givingthe nut a one-ciglitlnrota'- tion` or turn,

come into` binding: engagementv wtln the thexthreaded' ribs` of the nutthreaded portion of thebolt betw-eenzadjacentgkeyw-ays 22.place,\,thefkey will? 'be set freeftoibe snapped 29.' The outer. face oftheinut at. the..enclsy of: the

The moment this takes grooves-55 are swaged down and inwardly,

as indicated. at 35 toA provideabutments against which: thef key 2&1mightstrike to prevent the spring' 29 from throwing;` the keyfbeyond?the nut., Y Y

As show-ni. in Fig. 9 this invention is adapted particularly fonmanipulation in connection: with a., plurality of. members to.

be connected. and; in which; are formedv coun tensunk-I holes for theheadi and' the'nut of los the bolt. so that thereiwill. b'e novprojecting parts whentthe, members are' coupled together. In'V carrying:out this forni. ofi the iirvention in. practice', l surround the` boltshoulder with a. strong' spring 36 ofi any suit able'` nature, theAspring lying between the head1 ofthe bolt' and the Vbottomxofthe counl-`terlooard portion.` of.v the hole. through. which the bolt passes. By.'.applying-f force tof the head1y of.` theboltby any suitable jack'screwor lever mechanism! orl anyother'power devices, the spring may-be putunderany de*- sired d'egreeof compression forthe'purpose of" introducingther` nut into the others counterbore= andi securing itto the threadeden'd `of" the-bolt, as above described, andfafter the! nur; is likedlin! placel the* power is re*- leased from the head of the bolt leavingthe spring 'free to expand andv thereby` serve ,hold the parts; Vof thestructure as firmly together as Wouldb'e pro'- Vio vided for by theforce of the spring. The outer face of the nut may be provided with agroove 33 for the purpose of engagement with a screw driver or othertoo] when the nut is located in a counterbore or cavity as suggested inFig. 9 for the purpose of threading it.

In the last three figures, I show a bolt having a keyway 22 having itsaxis eccentric to, but parallel with the aXis of the bolt. The inner endof the keyway constitutes a socket 27 into which the shank portion 26 ofthe key 24 is adapted to project. This shank portion of the key issurrounded by the coil spring 29 which, as before described, tendstoproject or shoot the key outwardly toward the end of the bolt intolocking position. The operation of this form of the invention is verysimilar to that oi' Figs. l to 8, in that the keyway is provided with anotch 23 at its inner end into which the lat! erally projecting lug 24aof the key 24 is adapted to project to temporarily hold the key inretracted position against the force of the spring, see Fig. 14. The endof the key also is provided with a groove or kerf 33 for the applicationof a screw driver or the like to manipulate the same. |The nut issimilar to that shown in Fig. 2 and may be provided with any suitablenumber of notches 3l, into any one of which, the lug 24 of the keyisadapted to interlock to lock the nut. I claim:

l. The combination with a bolt having a longitudinal cruciform key seatformed in j its threaded end and intersecting the holt thread and a nutcooperating with the bolt around its key seat, of a cruciform key in'said key seat, said key being movable longitudinally of the bolt andprojecting radially through said key seat into interlocking engagementwith the threaded part of the nut. he combination with a bolt having alongitudinal key seat formed in its threaded end, said key seat beingformed with a laterally projecting notch adjacent to the lower end ofthe key seat, the bolt also being provided with a pocket extendinglongitudinally thereof below the notch, of a key located in the key seatand rotatable therein around its aXis to interlock in said notch, guidemeans for the key projecting into said pocket, and an actuating springfor the key surrounding said guide means in the pocket. 3. Thecombination with a bolt having a longitudinal key seat formed in itsthreaded' end, said key seat being provided with a laterally projectingnotch adjacent to its lower end, of a key movable longitudinally of thebolt in said key ,seat and adapted to inter-y lock temporarily in saidnotch, and means acting upon the key tending to force it upwardly alongthe key seat, the upper face' of the key being provided with a groove tocontrol the rotation `of the key and its cooperation with said notch.

4. The combination with a bolt having a longitudinal cruciform key seatformed in its threaded end, each portion of the key seat heilig extendedlaterally forming a notch, of a cruciform key movable longitudinallyalong the key seat and rotatable to cause all of its arms to interlockin the several key seat notches, said key having a central hole, a guidepin disposed centrally of the key seat and projecting through said keyhole, and a spring surrounding the guide pin and acting upon the keytending to force it toward the end of the bolt.

WILLIAM ALOYSIUS HUBENER.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents. Washington, D. C.

